5 gallon for a single specimen. 10 gallons for a pair. 20 gallons or Larger for groups.

Note:

Bettas are sold in small cups at the store, this
is not the way to keep them. While they can survive for a time
in a small space it is hardly ideal and borders on cruelty. They
should be kept in an aquarium with filtration and heating just
like any other tropical fish. Do not fall prey to the novelty
aquariums sold to house these animals.

Diet:

Carnivore, flake foods, frozen or live.

Behavior:

Peaceful, males can be territorial and should not
be combined unless in a large tank.

Best in a species tank. May be kept with other peaceful
community fish that will not nip fins.

Suitability:

For the advanced requires specialized water conditions.

Disclaimer

If you think some of the information in this statistic is incorrect
or missing and can provide us with additional or more accurate
information about this fish species please contact us at
Badman's Tropical Fish